package com.sky.mapper;

import com.sky.entity.SetmealDish;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;
@Mapper
public interface SetmealDishMapper {
    /**
     * 根据菜品id集合查询套餐是否关联
     * @param dishIds
     * @return 返回大于0表示有关联
     *
     * select count(0) from setmeal_dish where dish_id in()
     */
    List<Long> getSetmealIdsByDishIds(List<Long> dishIds);
    /**
     * 添加数据
     */
    void add(List<SetmealDish> setmealDishes);
     //查询setmeal_id下的所有数据
    @Select("select * from setmeal_dish where setmeal_id=#{setmealId}")
     List<SetmealDish> getSetmealId(Long setmealId);
    /**
     * 根据套餐id删除套餐和菜品的关联关系
     * @param setmealId
     */
    @Delete("delete from setmeal_dish where setmeal_id = #{setmealId}")
    void deleteBySetmealId(Long setmealId);
}
